Near-Base Multiplication Worksheet

Vedic maths trick 3: Multiplying numbers near 10, 100 and 1000 · Set 923 · 40 sums

The trick (Nikhilam Navatashcaramam Dashatah): Write how far each number is from the base (− if below, + if above). Left part: cross-add — one number plus the other’s difference. Right part: multiply the two differences; it must have as many digits as the base has zeros (carry the extra). One above and one below? The right part is negative: take 1 from the left part and write base − that amount.

1. 1.6 × 9 =
2. 2.11 × 8 =
3. 3.93 × 86 =
4. 4.990 × 963 =
5. 5.109 × 104 =
6. 6.14 × 12 =
7. 7.102 × 110 =
8. 8.107 × 105 =
9. 9.111 × 110 =
10. 10.106 × 101 =
11. 11.6 × 6 =
12. 12.106 × 112 =
13. 13.986 × 976 =
14. 14.115 × 101 =
15. 15.112 × 112 =
16. 16.97 × 94 =
17. 17.1031 × 1013 =
18. 18.11 × 11 =
19. 19.105 × 107 =
20. 20.111 × 86 =
21. 21.967 × 999 =
22. 22.98 × 93 =
23. 23.11 × 11 =
24. 24.14 × 6 =
25. 25.14 × 12 =
26. 26.1011 × 1023 =
27. 27.974 × 995 =
28. 28.1023 × 988 =
29. 29.9 × 6 =
30. 30.14 × 11 =
31. 31.1029 × 1024 =
32. 32.978 × 983 =
33. 33.965 × 980 =
34. 34.1016 × 982 =
35. 35.114 × 99 =
36. 36.114 × 101 =
37. 37.109 × 104 =
38. 38.983 × 964 =
39. 39.9 × 6 =
40. 40.11 × 6 =

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